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Japan develops a method to recover up to 90% of lithium from used EV batteries

https://tech.supercarblondie.com/japan-recovers-up-to-90-of-lithium-from-used-ev-batteries/
120•donohoe•2h ago•28 comments

Fundamentals of Wireless Communication

https://web.stanford.edu/~dntse/wireless_book.html
67•teleforce•2h ago•2 comments

The Git history command deserves more attention

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133•turbocon•3h ago•87 comments

The Economics of Recursive Self-Improvement [pdf]

https://elasticity.institute/rsi-paper.pdf
43•apsec112•3h ago•3 comments

Building and shipping Mac and iOS apps without opening Xcode

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362•speckx•10h ago•158 comments

Apple's new SpeechAnalyzer API, benchmarked against Whisper and its predecessor

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493•get-inscribe•12h ago•195 comments

An Englishwoman who sketched India before photography took hold

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Is x86 ready to ACE it?

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28•mfiguiere•3h ago•1 comments

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Agents.md – Dumb Human

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World-First 'Super Alloy' Could Transform the Way Metals Are Made

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31•tejohnso•4d ago•16 comments

Building Food Metadata with LLM Juries

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19•tie-in•2h ago•4 comments

What will be left for us to work on?

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68•randomwalker•2h ago•64 comments

Our Amish Language

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The infinite scroll may become endangered if controversial Calif. law passes

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122•Stratoscope•9h ago•206 comments

The art and engineering of Sega CD Silpheed

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237•ibobev•13h ago•50 comments

Turn your singing voice into printable notes (in the browser)

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34•busssard•4h ago•13 comments

Show HN: Sx 2.0 – Share AI skills with your team through a Dropbox folder

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25•detkin•5h ago•25 comments

SalesPatriot (YC W25) Is Hiring Full Stack Engineers (SF)

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YouTrackDB is a general-use object-oriented graph database

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Linux on the Sega 32X. Who needs hardware synchronization primitives anyway?

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69•alxmrs•8h ago•14 comments

A Study of Microsoft's Early 2026 Rollout of Claude Code and GitHub Copilot CLI

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44•softwaredoug•6h ago•23 comments
Open in hackernews

Japan develops a method to recover up to 90% of lithium from used EV batteries

https://tech.supercarblondie.com/japan-recovers-up-to-90-of-lithium-from-used-ev-batteries/
120•donohoe•2h ago

Comments

fzeroff•1h ago
What a poorly written article
donjapan22•1h ago
While I’m very excited for the new recycling breakthrough, I felt the same. It was… off
realxrobau•4m ago
Did you expect more from a website called Supercar Blondie?
yanhangyhy•1h ago
why bother? japan hate EV
jazzyjackson•57m ago
Japan wants domestic industry and specializes in things other than battery production
mc3301•52m ago
I used to follow it closely and be in the industry, but it still seems like Japan is gonna be the last "mostly ICE cars" of the developed countries.

Which is a shame, because it has a perfect combination of short-range needs (I mean, look at kei-cars), tons of wonderful places to hang out while charging (toll-way rest areas are so good), rare sub-freezing temperatures in most of the country, mandatory vehicle inspections (which could collect great safety data as well as preventative maintenance), general love of new cars and brand loyalty, lack of political or individual divide of "big gas trucks are manly", mobile-power-station earthquake preparedness (a nice bonus), generally cooperative nation-wide infrastructure...

I guess we just have to hope the main automakers can hold on long enough for solid-state batteries and move faster than a snail's pace when it does.

cammikebrown•49m ago
If you live in Tokyo or Osaka you really shouldn’t own a car
zdragnar•38m ago
What about the parent comment implied Tokyo or Osaka residence?
cyberax•18m ago
Hence nobody should live in Tokyo and Osaka.
inatreecrown2•47m ago
Isn't the reason they are so slow to adapt them that they have not enough electricity?
toomuchtodo
chvid•44m ago
It is curious - you would think they would love it? But they don't - is it simply the case of the Chinese beating them - stubbornness and pride? Or is there something more going on?

Toyota was seemingly decades ahead at one point with their hybrid cars; but now they have resigned to a defensive position compared to Tesla, Chinese automakers, even the European ones.

yanhangyhy•35m ago
> you would think they would love it?

no. i just found it funny.

> Or is there something more going on?

I remember BYD actually had to design models specifically tailored to the Japanese market (k-car)—their preferences are honestly so bizarre. I think a lot of this comes down to their national character. Once external momentum fades—like the industrial transfers from the US—they seem to lose the drive for technological innovation. They just cling to whatever they already have and refuse to adapt to global shifts.People in Japan are still using Yahoo and fax machines(not to mention their own bizarrely proprietary text editors,Hidemaru/SAKURA editor, to compare, in china, it's also vscode).

Toyota is still digging its heels in on gas-powered cars, even though the fact that Tesla used Japanese batteries in its early days proves Japan was once ahead of the curve.but they always seem to retreat right back into their comfort zone after a brief flash of brilliance, watching the rest of the world race ahead while they continue living in the past.

hnav•17m ago
That's probably a good thing, the world needs appliance-like cars for markets where EV charging isn't there yet.

Meanwhile Toyota is #1, moving millions of units, something like half of them are electrified in most markets. A 2026 Camry, for $30k, gives the buyer a low-TCO, value retaining, 50mpg, 230hp appliance of a car. That's a rarity.

jeffbee•19m ago
Every Tesla made in America contains 500 kilos of Japan's finest batteries. Honda may hate the EV but Panasonic does not.
zaik•1h ago
Can this be replaced with the original NHK World article?
bamboozled•1h ago
“Japan”, as in the whole country developed this tech ?
jazzyjackson•57m ago
https://en.wikipedia.org/wiki/Metonymy
waterproof•1h ago
according to https://x.com/Mith_/status/2041911606213537971

> The industry standard for the recovery of lithium (remember there is a difference between recovery and extraction) is 90%, with some platforms now achieving 95%+ like those that use carbonation.

toomuchtodo•54m ago
Some battery recycling challenges are minimal volume at this point on the EV adoption curve, and LFP and sodium ion battery chemistries won’t be worth recycling for the materials alone (but still require recycling as ewaste).

https://www.npr.org/2026/07/13/nx-s1-5847025/ev-battery-recy...

https://www.npr.org/2026/03/02/nx-s1-5706658/electric-vehicl...

https://news.ycombinator.com/item?id=48893945

https://news.ycombinator.com/item?id=48013768

koolala•16m ago
What is the standard non-renewable resource used for the recovery process? What materials are used up as catalysts to convert it back?
cyphar•27m ago
It really should not be surprising that we can get very high recovery percentages from batteries -- we do not mine elemental lithium, so the processes we use for extraction are already designed to extract lithium from fairly low-purity sources. In contrast, lithium batteries are an incredibly high-purity source of lithium. The main question is when it will become cost-effective to create recycling pipelines.

Lead acid batteries had a similar trajectory and modern lead acid batteries are effectively 100% recycled.

simondotau•25m ago
This article is poor, because lithium is just one part of the value contained within EV batteries. Far more valuable is any nickel, cobalt and graphite. Equally valuable is any copper and aluminium. Unless you're effectively recycling a significant number of the major materials, it's not enough.

Furthermore, it's not a remarkable achievement. By contrast to this headline, Redwood Materials claims "Redwood’s technology can recover, on average, more than 95% of materials like nickel, cobalt, copper, aluminum, lithium and graphite in a lithium-ion battery."[0]

[0] https://www.redwoodmaterials.com/recycle-with-us/

•
46m ago
Japanese automakers are excessively risk adverse. Last big risk by Toyota was their hybrid synergy drive, which they coasted on for too long.

https://en.wikipedia.org/wiki/Hybrid_Synergy_Drive

https://autos.yahoo.com/ev-and-future-tech/articles/toyota-p...

https://www.motor1.com/news/798173/toyota-chairman-reveals-w...

Loocid•37m ago
Which seems strange since Toyota are the origins of JiT manufacturing. I wonder what made Japan go through a period of incredible innovation and then just decide "ok, that's enough".
tyre•46m ago
In your opinion/experience, why is it that they aren't switching?
chubs•6m ago
I have a theory: Japanese car's have excellent reliability, their interiors and design are lacking. If every car in the world is an EV, which due to their relative simplicity tend to be reliable, what remaining unique selling points does eg a toyota have?
koito17•30m ago
Ironically, on the Japanese net, you'll find people complain about the "low range" of EVs compared to hybrids, meanwhile most people in the car-centric areas of Japan don't travel (let alone drive) outside of their own prefecture.

One complaint that I do think is valid is that many people don't live in a house with their own garage and 240V power line. i.e. dedicated home charging is impossible for many people.

cyberax•8m ago
Solid-state batteries are facing production hell now, with lots of issues cropping up when tested at large-scale in real devices.

So they are not expected in meaningful quantities until the early 2030-s.

And the LFP chemistry has now advanced so much that solid-state batteries might not even matter anymore, except for some niche uses like aviation/drones.